I'm liking it. It's a very definite change of pace compared to OOTS, and should complement it nicely, I think.

I also became hooked on the story by about #4, so I can't wait to see what happens next.

Spoiler
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It seems likely that something is going to go horribly, horribly wrong when Wanda attempts to cast that spell... we have, after all, seen its results on the cast page.